Sand-pump



G. PALM.

SAND PUMP (No Model.

Patentd June so; 1896.

ri... a n r% d .PHUTO-UTHGWASMXNGTONDC UNITED STATES PATENT OFFICE.

GEORGE PALM, OF BUTLER, PENNSYLVANIA.

SAND-PUMP.

SPECIFICATION forming part of Letters Patent No. 563,055, dated. June30, 1896. Application filed september 7,1895. Serial No; 561,730. (Nomodel.)

ments in these pumps, all of which will be hereinafter fully set forthand claimed.

To enable others skilled in the art to make and use my invention, I willdescribe the same more fully, referring to the accompanying drawings, inwhich- Figure 1 is a side elevation of my improved pump. Fig. 2 isavertical section thereof. Fig. 3 is an enlarged sectional view of theend of the pump. Fig. 4: is a view of a dart-valve to be used inconnection with my improved pump, and Fig. 5 is an enlarged section online 5 5, Fig. 2, looking upwardly.

Like letters indicate like parts in each of the figures.

The cylinder a, which contains the pump mechanism, may be of any desiredlength and this length may be increased over that of the ordinarysand-pump, as it is not necessary to invert the cylinder in my pumpafter the same has been filled with water and sediment taken from thewell, the pumps having been made of different lengths between twentyflveand forty feet. At the lower. end of the cylinder at are the lugs b,said lugs being adapted to engage with the seats 0 in the ringor collar(1, the connection between said ring or collar d and the casing a beingmade by what is generally known as a bayonetjoint. A spring e, securedto the cylinder a,

' has its free end 6 entering one of the seats 0,

whereby said spring locks the bayonet-joint and prevents thedisengagement of the ring or collar cl from' the cylinder a until thefree end of said spring is thrown out to allow for the turning of thering (1 to release it from the lugs b. This ring or collar cZhasinwardlytapering walls, which form a seat f, adapted to receive atapering valve-seat g, which has apertures kformed therein.

the clack-valve h mounted thereon, the inwardly-tapering walls and thetapering outer face of the valve-seat being employed, so that thevalve-seat will naturally wedge within the collar d and bind thereto, sothat it forms part of the collar for ordinary handling, but can beeasily removed therefrom, as hereinafter described. The ring d has therecesses d to allow the water to pass down under said ring. WVhen thering d is in position, the lower end of the cylinder a will come incontact with the tapering valve-seat g and hold the same securely inposition.

Within the cylinder a is the piston-rod 0 said piston-rod having securedto the end thereof the piston j. This piston j has the A plate 1 abovethe piston j is adapted to cover the apertures k of the pistonj. Themovement of this plate Zis regulated by the shoulder m on the piston-rod11. The piston-rod i has the enlargement 01 formed thereon just abovethe piston j, said enlargement being adapted to fit neatly within theopening 0 in the cap 0 of the cylinder a. The cylinder at has theopenings p at the upper end thereof, to allow for the escape of thefluid above the piston j when said piston is raised.

lVhen my improved pump is in use, it is lowered into the well, the upperend of the piston-rod 2' being connected to the cable or rope which isattached to the walking-beam. As the piston is lowered the plate Z willbe raised, allowing the fluid to pass up through the apertures 10 insaid piston, While upon the descent of said piston the plate Z willclose the apertures it. By having the enlargement or on the piston-rodi, I am enabled to cushion the stroke of the piston j, for as saidpiston rises beyond the openings 9 in the cylinder the enlargement 'nwill enter the opening 0 in the cap 0, practically filling the same orchoking it, so that there is but a slow escape of.

fluid, giving the dash-pot action and cushioning the piston, and thewater not being allowed to escape, to any great extent, through theopening 0 in the cap 0 on account of the enlargement n, whereby saidpiston will be prevented from striking the cap 0. This is an importantfeature, as where a wire cable is employed for pumping the piston oftenstrikes with considerable force against the upper end of the pump, whichaction is Very severe on the piston.

When the cylinder a is withdrawn from the well, it is only necessary todraw out the free end e of the spring 6 and turn the ring cl to releaseit from the cylinder. Upon the re moval of said ring the contents of thecylinder a will be discharged therefrom without the necessity of tiltingthe pump. This bayonet-and-spring connection gives a quick and readymeans for removing the valve, as upon the turning of the ring to bringthe lugs and slots into line the water in the pump will force down thering and valve and the operator can draw them to one side, leaving freeescape for the contents. To obtain successf ul results it is necessaryto have such quick means of releasing the rings and cap. All the solidcontents can therefore be easily discharged from the bottom of the pumpand without turning the pump over, as is usual with ordinary sand-pumpsused in Artesian wells. In this way the pump can be constructed to anylength desired.

In case it is desired to use a dart-valve, such as shown in Fig. 4:, thevalve-seat 9 can be readily removed from the ring d and the taperingvalve-seat of the dart-valve can be fitted within the taperingseat f andthe ring (1 can be adjusted to position with the end of the cylinder a,raising with it the tapering valve-seat to hold it in position.

In my improved pump the contents may be discharged without ditficulty,while at the same time diiferent kinds of valves may be secured in placequickly.

What I claim as my invention, arid desire to secure by Letters Patent,is

1. In a sand-pump, the combination of a suitable cylindrical shell, aring forming a valve-seat connected to the lower end of said shell bymeans of a bayonet-joint, and a spring adapted to lock said joint,substantially as set forth.

2. In a sand-pump, the combination of a suitable cylindrical shell, aremovable ring connected to the lower end of said shell by means of abayonet-joint and a spring to lock said joint, said ring having atapering inner face, and a valve-seat having a tapering outer face andengaging with said ring, substantially as set forth.

3. In a sand-pump, the combination of a suitable cylindrical shell,having a contracted opening at the upper end, and escape-ports near theupper end, of a piston contained therein, and a piston-rod engaging withthe piston and passing through such contracted opening of the cylinderand having an enlargement just above said piston adapted to enter saidcontracted opening, substantially as set forth.

I testimony whereof I, the said GEORGE PALM, have hereunto set my hand.

GEORGE PALM. Witnesses:

L. P. WALKER, F. H. WALKER.

